Sierra — Digital Graph Display Voltmeter — 11-EA01090
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sierra Digital Graph Display Voltmeter
A compact, panel-mount digital voltmeter that gives you a precise, real-time read on your DC system voltage — right from a standard 1-1/8" cutout. The Sierra EA01090 combines a 3-digit LED display with a circumferential battery level graph, so you get both an exact voltage reading and an intuitive charge level indicator at a glance. Self-powered from the circuit being measured, it requires no separate power feed — just a clean 2-wire connection. IP67 rated and completely sealed for reliable performance in the marine environment.
Key Features
- 3-digit digital LED display with floating decimal point for precision below 10V
- Circumferential battery level graph display for at-a-glance charge status
- Voltage range: 2.5–30V DC — compatible with 12V and 24V systems
- Resolution: 0.010V
- Sampling rate: 2ms for responsive, real-time readings
- Self-powered from the DC voltage being measured — no separate power wire required
- 2-wire design for simple installation
- Fits standard 1-1/8" panel cutout
- IP67 rated — completely sealed against dust and water immersion
- Reverse polarity protection
- Current consumption: less than 30mA
Installation
Fits any standard 1-1/8" round panel cutout. 2-wire self-powered design — connects directly to the circuit being monitored. Compatible with 2.5–30V DC systems. Part number: 11-EA01090.
Parts Desk Insights
Best Use Case: This voltmeter is the right fit for customers who want a clean, accurate battery or system voltage display at the helm without running a dedicated power feed. The 2-wire self-powered design makes it one of the simplest panel instruments to install — ideal for retrofits on boats where running additional wiring is difficult. The circumferential graph adds visual battery state-of-charge context alongside the precise digital readout, making it more informative than a basic analog gauge. Well-suited for monitoring house banks, start batteries, or any 12V/24V circuit. The IP67 rating makes it appropriate for exposed helm positions on open boats.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.